From nobody Mon Sep 29 21:15:53 2025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id ACB13C32757 for ; Tue, 16 Aug 2022 00:14:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1357200AbiHPANK (ORCPT ); Mon, 15 Aug 2022 20:13:10 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48728 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1357024AbiHPADd (ORCPT ); Mon, 15 Aug 2022 20:03:33 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8D23D16CCF9; Mon, 15 Aug 2022 13:25:12 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 19F2AB81197; Mon, 15 Aug 2022 20:25:11 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4C3E6C433D6; Mon, 15 Aug 2022 20:25:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1660595109; bh=b6g+upfMBir4x9nL9lFu0jJvrq9WrlcAMfMMZBcT7hY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=h7UowrvBZmRPX7cOjJz0Z2PaHFUq1PxIEc9BO/yD6P6S33aEE060iN1BuyqbO3gEi XfG4N8r7f0vVTNBMM/qnc9iEngPRPR4Z6jrVRke8yH04059d/NOlCs5AWypYt0mH06 BCXOPmn+C/63i30gAr1gVGNDjmjrff4gp+94J3Jo= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jonathan Cameron , =?UTF-8?q?Nuno=20S=C3=A1?= , Sasha Levin Subject: [PATCH 5.19 0652/1157] iio: adc: max1027: Fix alignment for DMA safety Date: Mon, 15 Aug 2022 20:00:08 +0200 Message-Id: <20220815180505.829539423@linuxfoundation.org> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220815180439.416659447@linuxfoundation.org> References: <20220815180439.416659447@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jonathan Cameron [ Upstream commit e754fb7e7a05e3838c9aa044b4114869dd0d1e17 ] ____cacheline_aligned is an insufficient guarantee for non-coherent DMA on platforms with 128 byte cachelines above L1. Switch to the updated IIO_DMA_MINALIGN definition. Fixes: fc167f624833 ("iio: add support of the max1027") Signed-off-by: Jonathan Cameron Acked-by: Nuno S=C3=A1 Link: https://lore.kernel.org/r/20220508175712.647246-24-jic23@kernel.org Signed-off-by: Sasha Levin --- drivers/iio/adc/max1027.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/adc/max1027.c b/drivers/iio/adc/max1027.c index 4daf1d576c4e..b725d012625c 100644 --- a/drivers/iio/adc/max1027.c +++ b/drivers/iio/adc/max1027.c @@ -272,7 +272,7 @@ struct max1027_state { struct mutex lock; struct completion complete; =20 - u8 reg ____cacheline_aligned; + u8 reg __aligned(IIO_DMA_MINALIGN); }; =20 static int max1027_wait_eoc(struct iio_dev *indio_dev) --=20 2.35.1